Remove Android.mk rules for building bootctrl. am: 7bde6868ff
am: 308431ceb7

Change-Id: I0120922025265fd8008e83c03661afb433838a86
tree: 96cca2d3a244892f9167aa4396069ea6fa2d3431
  1. Android.bp
  2. boot_control.cpp
  3. NOTICE